Saturating receptacle



C. STILL SATURATING RECEPTACLEV Filed Aug. 24. 1.921

[7 vemor:

Patented Aug. 23, 1927.

UNITED" s'i 'A'r-Es* PATENT? OFFICE.

CARL sTrLL, 0F RECKLINGHA'USEN', GER ANY, ASSIGNOB TO THE FIRM: CARL s'rILL,

on aEcKLmG-H'AUsEN, GERMANY. v 1 I SATURATING RECEPTACLE.

Application filed August 2411921, serial no. 494,849, and in German August a; 1919. I

This invention relates to that' kin'd of saturators used tor producing solid salts by treating gases with acids orother'suitable saturating liolt'iids, the -inanut'acture of sulphate or annnonla in which satuto the 'satura'tingliquid from a commonsu plying and distributing space through several parallelly arranged which are immersed from above into a uniforin saturatijn'g'bath. v I Y The constructive advantages'of such saturating, receptacles,

of construction, 'sut'a'ble arrangement' 'and accessibility of the distributingelements,

are to a large degree impaired by material drawbacks and difiiculties, v the operation of such 'saturator's. Experience has shown thatfincrustati'ons of solid salt, forming har'dthick nia'sse's,- always are deposited during the operation in'ainly on the inner Walls ofthe veitic algas distributing 'p ipes, the thickness of said incrustations' always increasing more and mate, so that finally thecross sectional'areas of said dis tributingpipes are clogged upinore orles'sr The result of saidiincru'station's is oi course a very irregular distribution otthe gases through" the quence thereofis adefective saturation oi the gases due to this nonsynirrietrical action of the gases f on the liquid] Also a strong it of the liquid mass the'bath is produced whereby man further disadvantages are caused, as the throwing of swaying and waving liquid" ands'alt, in assesinto the gas chain-V hers, the vibrating of the saturator as a wholejandlthe loosening of its lndivldual parts; and allthese'dit'riculties will render impossible the regular f operation and finally even forcethe coinplete shut-down of the plant. My 5 I By the present invention all those defects are obviated at once in a very simple ma noneeinbodinient. of the subject matter of my invention is lllustratedgrthe figure represents a vertical section through. a saturating re for instance saturators' for distributing pipesg which advantages are" based mainly on the simplicity and'sol dityj encountered in "several ipes and the cones:

cept'a 'cle constructed accordingto the princlple of my. invention.

The saturatlon receptacle, which in plan between the two casing parts a and b, and-- a vertioal, large central tubef, connecting.

thepartition e and the cover cl, the interior space otthe saturator is divided into an upperchaniber; or heady and a lower chamber h, The upper. chamber 01' head 9 serves torthe admission distribution of the in co ning gases and accordinglyis provided with two gas inlet tubes arranged oppositely toieach other through which the gas to'be treated is forced in under pressure whereby the gas follows the path indicated by the arrow in pi es Z, v The inflowing gas atthe bottom of pipes Z,

displaces the li qui as -shown. n the drawing, The lower chamber Ztserves for holding; abath of saturating liquiththelgvel of'which is indicatedby 1a,;

and fqribringingthe gas into 7 contact with the liquid After the gas has been treated by the liquid the former isled away through the central tube f FQlf the distribution of the gas in the saturating liquida plurality of distributingpipes Z is-provided (in the enibodiinent shown sixpipes, which are ar-,

ranged in a circle), said pipes beingfitted ilt thflllf upper ends to the partltion ebeneath the chamber 9 wl1ereby -tliey are ply, and immersed with then-flower, serrated edges to the saturating bath i z. I

parallelly connected to connnongas sup-.

Aocor ling to the invent' uting pi ae l is provided in its upper part at so nedistance from the bath level k,;pref erably according to the embodiment in the drawi ng,fat its upper inlet end with a device for fprming a narrowed or constricted passage m atthe center of its crosssectional area. i Preferably this construction shown on each J distribis ma degadjustable, for instancfeby means of a closure cone valven, which is vertically dj s ble-J threaded spindle s which projects upwardly through the saturator cover c l, and isprovided at its upper end with a hand-wheel e,

,Sai'd cone n is s e'oured to a;.

distributing ting the walls of said spindle 8 being guided by means of a fixed nut t. Of course also other suitable means can be employed for ad usting the constricted passage openings of the distribthe free cross-sectional area of the passage openings. Of course, all of the passage openings m of the individual distributing pipes Z must have the same free cross-sectional areaor must be adjusted to the same in order that the same quantity of gas be fed to eachof the-distributing pipes. The gas to be treated, for instance distillation gas containing ammonia, enters, always moving in the direction of the arrows, from the distributing chamber 9 through the passage openings 972 into all of the distributing pipes Z, flows through each of said pipes in axial direction in the shape of a central jet, as indicated in the drawing, and enters the liquid which; for example, may be sulphate of ammonia solution containing sulphuric acid, through the serrated lower edges of the pipes. In this manner the gas is finely distributed in the bath of saturating liquid, the unabsorbed portion of the gas escaping into thecollecting chamber A and passing away through the central tube 7. The solid salt, formed by the reaction of the gas'with the saturating liquid, for instance sulphate of ammonia, collects as a deposit in the funnel or cone-shaped bottom part 0 of the satu-' rating receptacle and is removed from said bottom part from time to time by means of any known suitable device, not shown in the drawing, while at the same time of course care must be taken to replace in a corresponding degree the absorbing agent, for instance sulphuric acid, consumed from the saturating liquid.

The described guiding of the the distributing pipes Z by means of the constrictions m has the peculiar effect,-that any deposits of salt incrustations in the saturator, mainly at the innersurfaces of, the pipes Z, and accordingly all drawbacks of crustations, are fully avoided. maybe explained by the fact, that on account of the axial position of the central'gas jets, which are formed by the constrictions m and do not completely fill out the crosssectional areas of the distributingpipes Z, the action of fresh gas particles upon that part ofthe liquid, which in consequence of unavoidable spurting'is continuously wet the pipes Z-,1-s reduced so" far, that any noticeable separation of salt on thesewetted surfaces is prevented. Fur

thermore on account of the quiet, steady and uniform operation, attained in thismanner, the throwing of liquld and salt masses into gas through I operation caused by such in This effect the gas spaces of the saturator is reduced to the smallest degree. As however the before explained formation of the gas jets within the interior of the distributing pipes Z requires a certain minimum velocity of the passing gas, also the'adjustabilityof the free cross-sectional areas of the constrictions at is of essential importance in the case of changing quantities of gas and varying.

conditions of operation to be dealt with.

Having thus particularly described the nature of my invention, what I claim as new and desire to secure by Letters Patent of the United States is: I

1. 'A'saturating receptacle for producing solid salts by prising in combinationa cylindrical middle member, a cover, and a cone-shaped bottom member, a partitiondividing said cylindrical middle member into an upper gas distributing chamber and a lower chamber-for a saturating liquid, a central tube'for leading. away treated gas and connected withv the lower chamber and passing through the cover, and a plurality allel arranged gas distributing pipescommunicating with said distributingchamber, arranged to have their lower ends immersed in the saturatingliquid, each of said distributing pipes being provided at some ,dis tance above the level of the liquid wit-ha re-l s ricted opening axially disposed.

2. A saturating receptacle for producing solid salts by treating a gas with 'a'liquid u V I compris ng, a liquid'cont-amer, a

gas distributing head, and a plurality of vertically arranged gas distributing pipes, effecting treating gas with acids, com

of vertically and parcommunication betweenthe distributing head and the liquid container, having a gas inlet opening of smaller crosssection than that of the pipe, whereby gas from the distributing head flows through.

e I u n in solid salts by treating gas wlth liquids, com

I prising, in combination, a vessel, the lower part ofthe vessel being formed to receive a bath of saturating liquid, theupper part of the vessel bearing'several parallel gasjdis tributing pipes, a common gas supply connected to the pipes, the pipes being sit-ioned to be immersed from above into the saturating bath, each of the distributing pipes being provided at, a distance above the level of the'bath with a restricted opening axially disposed, and an outlet lead-11 part of the vessel-for c s-" ing from the lower cape of unabsorbed gases there-from.

.4. A saturating receptacle for producing so'hd' salts byv treating gas with ac1ds,'comprising in combination, "a vessel having a lower part for holding a ba'th .of saturating llquid'and an upper part, a common gas supeach of said pipes ply furnished by the upper part, a plurality of gas distributing pipes connected in par allel to the common gas supply and positioned to be immersed from above into the saturating bath, each of the distributing pipes being provided at some distance above the level of the saturating bath With a restricted opening axially arranged and means positioned at its central axis for adjustably controlling said openings so as to adjust at 10 will the free passage through the pipe and an outlet leading from the lower part of the vessel, for escape of unabsorbed gases there from.

In testimony whereof I aflix my signature.

CARL STILL. 

